C14H6O4Na2/graphene composite as a high performance sodium storage cathode

“…The peak corresponds to the reoxidation of the lithium enolate, forming the carbonyl groups. 25,33,34 The processes of two-electron transfer reactions can be represented as the inset of Figure 3a. The ex situ FTIR spectra (Figure S9) for LiAQC were recorded to confirm the two-electron transfer reaction between the carbonyl groups and lithium ions.…”

Section: Resultsmentioning

confidence: 99%

“…DHAQNa/G as a cathode material for sodium-ion batteries exhibited much improved charge and discharge performance than DHAQNa, including higher reversible capacity (176 mAh g −1 vs 159 mAh g −1 ) and better cycling performance (∼151 mAh g −1 vs ∼90 mAh g −1 after 100 cycles at 0.1 C). 25 G). The PTAL−G anode with graphene as an electronic conductivity promoter exhibited a high reversible capacity of up to 248 mA h g −1 and long life for LIBs.…”

Section: Introductionmentioning

confidence: 98%

“…The organic compound 1,5-dihydroxy anthraquinone sodium salt (DHAQNa) and its graphene composite (DHAQNa/G) were synthesized by a simple ball-milling and dispersed-deposition process. DHAQNa/G as a cathode material for sodium-ion batteries exhibited much improved charge and discharge performance than DHAQNa, including higher reversible capacity (176 mAh g –1 vs 159 mAh g –1 ) and better cycling performance (∼151 mAh g –1 vs ∼90 mAh g –1 after 100 cycles at 0.1 C) . Yu et al reported the lithium terephthalate Li 2 C 8 H 4 O 4 (PTAL) and its composite with graphene (PTAL–G).…”

Section: Introductionmentioning

confidence: 99%

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Facile Synthesis of a LiC₁₅H₇O₄/Graphene Nanocomposite as a High-Property Organic Cathode for Lithium-Ion Batteries

Yang

Deng

Liang

et al. 2022

ACS Appl. Mater. Interfaces

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Organic electrode materials face two outstanding issues in the practical applications in lithium-ion batteries (LIBs), dissolution and poor electronic conductivity. Herein, we fabricate a nanocomposite of an anthraquinone carboxylate lithium salt (LiAQC) and graphene to address the two issues. LiAQC is synthesized via a green and facile one-pot reaction and then ball-milled with graphene to obtain a nanocomposite (nr-LiAQC/G). For comparison, single LiAQC is also ball-milled to form a nanorod (nr-LiAQC). Together with pristine LiAQC, the three samples are used as cathodes for LIBs. Results show that good cycling performance can be obtained by introducing the −CO2Li hydrophilic group on anthraquinone. Furthermore, the nr-LiAQC/G demonstrates not only a high initial discharge capacity of 187 mAh g–1 at 0.1 C but also good cycling stability (reversible capacity: ∼165 mAh g–1 at 0.1 C after 200 cycles) and good rate capability (the average discharge capacity of 149 mAh g–1 at 2 C). The superior electrochemical properties of the nr-LiAQC/G profit from graphene with high electronic conductivity, the nanorod structure of LiAQC shortening the transport distance for lithium ions and electrons, and the introduction of the −CO2Li hydrophilic group decreasing the dissolution of LiAQC in the electrolyte. Meanwhile, density functional theory calculations support the roles of graphene and −CO2Li groups. The fabrication is general and facile, ready to be extended to other organic electrode materials.

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“…Organic compounds, such as organic free radicals, , organosulfides, , and carbonyl compounds, − have recently attracted considerable interest as alternative electrode materials for SIBs because of their low cost, tunable redox activities, structural diversity, and environmental friendliness . The dissolution of organic electrodes in organic electrolyte, however, results in poor cycling stability.…”

Section: Introductionmentioning

confidence: 99%

Graphene-Supported Naphthalene-Based Polyimide Composite as a High-Performance Sodium Storage Cathode

Zeng

Qian

et al. 2022

ACS Appl. Mater. Interfaces

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Electroactive acid anhydride with multicarbonyl is highly promising for electrochemical energy storage because of its high specific capacity and environmental benignity. Its low electrical conductivity and high dissolution in organic electrolyte, however, result in poor cycling and rate capabilities. Here, we report a naphthalene polyimide derivative (NPI) synthesized by using anhydride under condensation polymerization conditions, along with its composite with graphene (NPI-G) fabricated via in situ polymerization. The composite delivers a high reversible capacity and outstanding cycling stability and rate capability as a cathode for sodium-ion batteries (SIBs) owing to the formation of a polymer, the improvement in the electrical conductivity brought about by the highly dispersed graphene sheets, and the enhancement of structural stability resulting from the π–π stacking interaction between the phenyl groups of NPI and the six-member carbon rings of graphene. This investigation sheds light on the development, design, and screening of next-generation organic electrode materials with high performance for SIBs.

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C14H6O4Na2/graphene composite as a high performance sodium storage cathode

Cited by 9 publications

References 45 publications

Redox-active sodium 3,4-dihydroxy anthraquinone-2-sulfonate anchored on reduced graphene oxide for high-performance Zn-ion hybrid capacitors

Redox-active sodium 3,4-dihydroxy anthraquinone-2-sulfonate anchored on reduced graphene oxide for high-performance Zn-ion hybrid capacitors

Facile Synthesis of a LiC₁₅H₇O₄/Graphene Nanocomposite as a High-Property Organic Cathode for Lithium-Ion Batteries

Graphene-Supported Naphthalene-Based Polyimide Composite as a High-Performance Sodium Storage Cathode

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C14H6O4Na2/graphene composite as a high performance sodium storage cathode

Cited by 9 publications

References 45 publications

Redox-active sodium 3,4-dihydroxy anthraquinone-2-sulfonate anchored on reduced graphene oxide for high-performance Zn-ion hybrid capacitors

Redox-active sodium 3,4-dihydroxy anthraquinone-2-sulfonate anchored on reduced graphene oxide for high-performance Zn-ion hybrid capacitors

Facile Synthesis of a LiC15H7O4/Graphene Nanocomposite as a High-Property Organic Cathode for Lithium-Ion Batteries

Graphene-Supported Naphthalene-Based Polyimide Composite as a High-Performance Sodium Storage Cathode

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Facile Synthesis of a LiC₁₅H₇O₄/Graphene Nanocomposite as a High-Property Organic Cathode for Lithium-Ion Batteries